Abstract
Electrofusion welding (EFW) is a widely used technique for joining polyethylene pipes in the oil, gas and water industry. Like many welding and joining methods, the joints created by EFW can exhibit a range of flaw types that can be attributed to process variables such as: poor preparation of the parent material, contamination of the weld surfaces prior to welding and operator and/or equipment failure during the welding process. This paper describes ultrasonic testing using 128-channel linear array with a DYNARAY system to acquire data from a range of joints created using EFW. The samples were created in the laboratory with a range of defects that represent those commonly observed in the field. The samples were subsequently destructively tested using tensile testing of the coupling-pipe interface. Good corroboration was achieved between the observed weld quality from the ultrasonic data and the weld strength
determined by the destructive testing.
determined by the destructive testing.
Original language | English |
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Title of host publication | 51st Annual Conference of the British Institute of Non-Destructive Testing 2012 (NDT 2012) |
Subtitle of host publication | Proceedings of a meeting held 11-13 September 2012, Northamptonshire, UK. |
Place of Publication | Northampton |
Pages | 129-139 |
Number of pages | 10 |
Publication status | Published - 11 Sep 2012 |
Event | BINDT 51st Annual Conference - Northampton, Daventry, United Kingdom Duration: 4 Sep 2012 → 6 Sep 2012 |
Conference
Conference | BINDT 51st Annual Conference |
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Country/Territory | United Kingdom |
City | Daventry |
Period | 4/09/12 → 6/09/12 |
Keywords
- polythene pipes
- ultrasonic imaging
- electrofusion welded
- utilities industry